Manchester United have submitted an improved offer for Brentford forward Bryan Mbeumo worth more than £60 million.

Manchester United have returned to Brentford with a renewed offer for winger Bryan Mbeumo, sources have told ESPN. United have indicated they're willing to pay a fee in excess of £60 million -- with a higher proportion due up front -- and closer to Brentford's valuation, around £65 million, for the Cameroon international.

The 25-year-old is entering the final year of his contract at Brentford, who do have the option to extend his stay by a further 12 months.